Thoughts
It can be really hard to do something that you've never done before and that you know you're likely to mess up.
One thing I find helps is (over)estimating how many times you think you're going to fail, and then counting how many times you do. It's useful when you've failed 0 times or you've failed once and you're demotivated—you can look at your prediction and say, hey, failing is expected.